Sony BVH-2000, Operation And Maintenance Manual

Page: 183 / 505

Pinch Roller Pressure Adjustment
Apply tension shown 3-49 to
pinch roller arm. Pull the tension scale the direction
connecting the capstan and the pinch roller as shown by
the arrow in detail a, separate the pinch roller once from
the capstan, and wait until the rotation of the pinch roller
stops. Return the tension scale in direction of the capstan,
and confirm that the indication value of the tension scale is
the starts
the conrnnon.
When the roller capstan,
confirm that the clearance between the pinch lever and the
stopper is 0.3
±
0.1 mm as shown in detail b. If necessary,
adjust the stopper position. Apply the locking compound
to the threaded part of the adjustment screw.
14. Press S3 (RESET) on the SY-80 board.
FG
S4 press
(ENTRY) at least 0.5
17. Set the machine in the following mode.
for NTSC. PM: 10/30 FWD PROGRAM JOG mode
for PS, P: 8/25 FWD PROGRAM JOG mode
18. Confirm that the duty cycle of the waveform at TP6 of the
CD-17 board is 50% as shown in Fig. 3-50. If necessary,
adjust RV2.
the
necessary,
Press the button press S3 on the
SY-80 board. Remove the shade from the tape sensor.
BVH-2000(U/C)/PS/PM
BVH-2180(U/C)/PS/PM
BVH-2500(U/C)/P
TAPE SENSOR
Fig. 3-49. Pinch Roller Pressure Adjustment
BOARD
RV3
TP7
§
S4 (TEST 1)
o
S7 (ENTRY)
RV2)
(!I
RV3)
A
----+-
B
--l
A=B
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